Trolley-wheel



(No Model.)

- W. 0. GOTTRELL.

TROLLEY WHEEL.

No. 563,749. Patented July 14, 1896.

w ibmawo UNITED STATES PATENT OFFICE.

"WILLIAM G. COTTRELL, OF ASBURY PARK, NEW JERSEY.

TROLLEY-WHEEL.

SPECIFICATION forming part of Letters Patent N01 563,749, dated July14;, 1896. Application filed Au u t 28, 1895. Serial No. 560,723. (Nomodel.)

To all whom it may concern:

Be it known that I, WILLIAM C. CorrRELL, a citizen of the United States,residing at Asbury Park, in the county of Monmouth and State of NewJersey, have invented certain new and useful Improvements inTrolleylVheels; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to certain new and useful improvements introlley-wheels, and it has for its objects among others to provide asimple and cheap Wheel which will run easier and require less care thanthe old forms.

1 construct the wheel of a larger and a smaller wheel with ball-bearingsbetween the two, the inner wheel being carried by a polygonal axle theends of which have ball-bearings in the yoke on the pole. The end oryoke of the pole has one side hinged so that it may be moved to take outthe wheel without removing the axle from the wheel.

The device is composed of few parts and those readily assembled, notliable to injury or to get out of order, and durable and efiicient inoperation.

Other objects and advantages of the invention will hereinafter appearand the novel features thereof will. be specifically defined by theappended claim.

The invention in this instance resides in the peculiar combinations andthe construction, arrangement, and adaptation of parts, all as morefully hereinafter described, shown in the drawings, and thenparticularly pointed out in the claim.

The invention is clearly illustrated in the accompanying drawings,which, with the letters of reference marked thereon, form a part of thisspecification, and in which- Figure 1 is a substantially central sectionthrough my improved wheel and the yoke by which it is carried. I Fig. 2is a view at right angles to Fig. 1. Fig. 3 is an enlarged perspectivedetail.

Like letters of reference indicate like parts in all the views.

Referring now to the details of the drawings by letter, A designates thetrolleypole and B the yoke carried at the upper end thereof. One arm orbifurcation of this yoke is made separate from the other and is hingedthereto, as shown at a, the said part being designed to be locked in itsproper position in any suitable manner, as by the pin C, which is passedthrough the one part into the other, as shown, and which may be quicklyremoved when it is desired to turn down the hinged part to allow of theremoval of the wheel without removing it from its axle.

The wheel consists of the inner disk D, which is mounted upon the squareportion 6 of the axle E, and the outer wheel F, which has the groovedperiphery, as shown at f, to receive the trolley-wire in the usualmanner. The inner face of the outer wheel is provided with the annularchannels f upon opposite sides of its central annular rib F, and inthese channels are arranged the balls G of suitable size andconstruction. These balls are retained in position by the removableplates H, which are secured in a groove h in the outer faces of the twowheels, as shown in Fig. 1, and which serve as guides for the oneportion of the wheel upon the other.

The journals I of the axle are mounted in suitable ball-bearings K inthe arms of the yoke, as shown, and these balls are retained withintheir chambers or grooves by the re movably secured plates L, as shown.

The operation is simple and will be readily understood from theforegoing description when taken in connection with the annexeddrawings, and a further detailed description thereof is not deemednecessary.

WVhat is claimed as new is- The combination with the yoke and the axlehaving its ends journaled therein in ball-bearings, and having a squareportion between its ends, of the inner portion of the wheel carried onthe square part of said axle, the outer portion of the wheel and theballs arranged between the two, substantially as specified.

In testimony whereof I have signed this specficationin the presence oftwo subscribing witnesses.

YVILLIAM C. COTTRELL. lVitnesses BLANCHE S. Dnv, Gno. W.P1rrnsona.

